_:b56912900	<http://www.w3.org/ns/oa#hasSelector>	_:b56912901 .
_:b56912901	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56912901	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56912900	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6137baa6da1c34a8cf59be36b52928a1930ef1f0/3> .